Air-pump for oil-cans and other containers.



A. J. TOOL.

AIR PUMP FOR OIL CANS AND OTHER CONTAINERS.

APPLICATION FILED NOV. 28,1914- Patented Sept. 5, 1916.

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A. J. TOOL.

AIR PUMP FOR OIL CANS AND OTHERCONTMNERS.

APPLICATION FILED r40v.2s. 1914.

1,1 97,410. PatentedSept. 5,1916.

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AIR-PUMP FoR'oIL-oANs AND ornnn CONTAINERS.

Specification of Letters Patent.

Patented Sept. 5, 1916.

Application filed November 28, 1914. Serial N 0. 874,412.

T '0 all whom it may concern:

Be it known that I, ARTHUR J. TooL, a citizen of the United States, anda resident of Murdock, in the county of Cass and State of Nebraska, haveinvented a new and Improved Air-Pump for Oil-Cans and other Containers,of which the following is a full, clear, and exact description.

My invention, while applicable to containers generally from which afluid is to be dis pcnsed, is more particularly intended for embodimentin oil cans.

The invention relates especially to that type of can equipped with anair pump whereby to produce air pressure withinthe can for dischargingthe contents thereof under pressure. I

()bjectsof my invention are to provide an e'liicient pump in compact.form and conveniently disposed on the can body; to provide a pump forthe indicated purposes, of the diaphragm type, in which the diaphragm inwhich a vent may be, controlled also by the hand operating the pumpwhereby to ar- I may be flexed by a finger of the hand holding the canand the said finger at the same time control the air inlet of the pump;to provide a pump of the indicated character rest the discharge of thefluid by relieving the pressure in the can.

The invention will be particularly ex?- ;plained in the specificdescription following.

Reference is had to the accompanying drawings forming part of thisspecification, in which similar.characters of reference indicatecorresponding parts in all the views, and in which:

Figure 1 is a vertical section of a can equipped with my invention; Fig.2 is a plan view of the air pump; Fig. 3 is a detail cross-section onthe line 3-3 of Fig. 1; Fig. l is a side elevation of the parts insection showing another form of the invention; and Fig. 5 is a sideelevation of still another form of pump, the can being in verticalsection.

Referring particularly to the form shown in Figs. 1 to 3, the body 10 ofthe can may have any approved. shape, that indicated being theconventional'form of an oil can. The can is provided with a dischargenozzle 11, and extending into the can from the inner end of the nozzleis an air pipe 12, the lower end of which is adjacent to the bottom ofthe can. The top of the can may be equipped with any approved fillingcap 13.

My improved air pump designated gener .ally by the numeral 14 issupported on the top of the canby an air tube 15 extending from the baseof the pump to the can top and communicating with the interior of thecan. The base of the pump has a discharge orifice16commanded by a checkvalve 17, the stem 18 of which has guided movement in a spider 19disposed in the air tube 15.

A dome shaped flexible diaphragnrQO forms the front of the pump and isprovided with an air inlet. At the center of the diaphragmare an outerdisk or washer 21 and an inner disk or washer 22, which are clamped tothe diaphragm by a tubular washer 23 constituting the air inlet. Withinthe pump beneath the diaphragm 20, and centrally disposed, is acompression spring 24, the inner end of which rests on the base Thus thespring supports the diaphragm and is located directly adjacent to theair inlet 23, so that in the operation of the pump by a fiexure of thediaphragm 20, the finger that depresses the diaphragm may also con--veniently open and close the air inlet 23.

In order to clamp the diaphragm 20 air tight, the body'of the base ofthe pump is formed with a peripheral annular flange 14L formed with acoarse screw thread, and from the top of the annular flange thereextends radially inward a flange 1 1" provided with an annulardepression 14L. The diaphragm 20 is formed with an edge flange 20 whichseats on the flange 14t over the depression 14. The connection of theparts is completed by a clamp ring 25 threaded to take onto the threadedperipheral flange 1d at the base and having an outer flange 25 extendingradially inward over the flange 20 of the diaphragm. The flange 25 isformed with a depressed bead 25 alining with the depression 14 of thebase flange whereby to crimp the flange 20 of the diaphragm and bind ittightly between the flanges 14*, 25.

The body 10 is equipped with handle elements of a character to permit ofthe can being grasped bodily and yet leaving the fingers of the handfree to manipulate the pump and also to control a vent 15 which isvertical, oblong, looped wire attached to the body of the can at theexterior beneath the pump and a ring handle 27 disposed above the handle26, said ringhandle being secured to the top of the can and in contactwith the underside of the pump base. brace 28 may be secured to thenozzle 11 and to the air tube 15.

In Fig. i the container 10, the pump with its various elements, as wellas the handles 26, 27 are the same as in Fig. 1. The air tube 15 thatsustains the pump 14 is formed with a lateral vent opening 15 which iscommanded by a valve 30. The said valve is disposed on the outside ofthe tube 15 and is pivoted as at 31 between lugs 31 on said tube. Thevalve is provided with an operating arm 32 which extends adjacent to thenozzle 11, and there is a compression spring 33 interposed between thenozzle and the said operating arm. The spring 33 normally maintains thevalve closed. Pressure by finger of the hand holding the can will serveto raise the valve 30 [and permit the air to escape to arrest thedischarge or the fluid from the nozzle.

In the form shown in Fig. 5 the pump as 'well as the nozzle 11 and theinner discharge tube 12 are carried by the filling cap 13- so that allare removable with the said cap. In this way the cap may be applicableto cans already made. The pump 14: is the same as in Figs. 1 and 4. Theair tube 15, however, extends in a direction toward the nozzle, and hasa downward extension 15 extending through the cap 13 adjacent to thenozzle. A lateral vent opening 15 is formed in a lateral bulge 15 of theair tube. To brace the pump and provide gripping elements for thefinger, a ring 27 is disposed between the base of the pump and the cap13 and secured to both as well as to the air tube 15. The ring 27 isdisposed beneath the air tube 15". A similar ring 34 is positioned abovethe air tube 15 and suitably secured to the latter as by soldering, aswell as to the inner side of the pump 14 and to then ozzle 11 Havingthus described my invention, what I claim as new and desire to secure byLetters Patent, is:

1. An air pump for application to a containc'r to direct air thereto,said pump including an air pipe adapted to be secured at one end to acontainer, said air pipe having a lateral vent opening, a diaphragm pumphaving a base secured to and rigid with the said pipe, above andadjacent to the air vent, and a handle beneath said rigid base at theopposite side of the pipe from the vent to permit the pump to be graspedand operated a and the said vent to be controlled by a finger of thehand operating the pump.

2. An air pump for application to a container to direct air thereto,said pump including an air pipe adapted to be secured at one end to acontainer, said air pipe having a lateral vent opening, a manuallyoperated valve commanding the said opening, a diaphragm pump having abase secured to and rigid with the said pipe, above and adjacent to theair vent, and a handle beneath said rigid base at the opposite side ofthe pipe from the vent to permit the pump to be grasped and operated andthe said vent to be controlled by a finger of the hand operating thepump.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

, ARTHUR JOSEPH TOOL.

VVitn'esse's:

JERRY E. 'MGHUGH, E. H. MILLER.

Copies or this patent may be obtained for fiv e cents each, byaddressing the Commissioner of Patents, Washington, D. G.

